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[SCTP] Make init & delayed sack timeouts configurable by user. 

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich 2005-06-28 13:24:23 -07:00 committed by David S. Miller
parent 7a1af5d7bb
commit 2f85a42964
7 changed files with 30 additions and 25 deletions
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1
include/linux/sysctl.h
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@ -641,6 +641,7 @@ enum {
NET_SCTP_ADDIP_ENABLE = 13,
NET_SCTP_PRSCTP_ENABLE = 14,
NET_SCTP_SNDBUF_POLICY = 15,
NET_SCTP_SACK_TIMEOUT = 16,
};
/* /proc/sys/net/bridge */

18
include/net/sctp/constants.h
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@ -263,23 +263,11 @@ enum { SCTP_MIN_PMTU = 576 };
enum { SCTP_MAX_DUP_TSNS = 16 };
enum { SCTP_MAX_GABS = 16 };
/* Here we define the default timers. */
/* Heartbeat interval - 30 secs */
#define SCTP_DEFAULT_TIMEOUT_HEARTBEAT (30 * HZ)
/* cookie timer def = ? seconds */
#define SCTP_DEFAULT_TIMEOUT_T1_COOKIE (3 * HZ)
/* init timer def = 3 seconds */
#define SCTP_DEFAULT_TIMEOUT_T1_INIT (3 * HZ)
/* shutdown timer def = 300 ms */
#define SCTP_DEFAULT_TIMEOUT_T2_SHUTDOWN ((300 * HZ) / 1000)
/* 0 seconds + RTO */
#define SCTP_DEFAULT_TIMEOUT_HEARTBEAT (10 * HZ)
/* recv timer def = 200ms (in usec) */
/* Delayed sack timer - 200ms */
#define SCTP_DEFAULT_TIMEOUT_SACK ((200 * HZ) / 1000)
#define SCTP_DEFAULT_TIMEOUT_SACK_MAX ((500 * HZ) / 1000) /* 500 ms */
/* RTO.Initial - 3 seconds
* RTO.Min - 1 second

4
include/net/sctp/structs.h
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@ -161,6 +161,9 @@ extern struct sctp_globals {
*/
int sndbuf_policy;
/* Delayed SACK timeout 200ms default*/
int sack_timeout;
/* HB.interval - 30 seconds */
int hb_interval;
@ -217,6 +220,7 @@ extern struct sctp_globals {
#define sctp_sndbuf_policy (sctp_globals.sndbuf_policy)
#define sctp_max_retrans_path (sctp_globals.max_retrans_path)
#define sctp_max_retrans_init (sctp_globals.max_retrans_init)
#define sctp_sack_timeout (sctp_globals.sack_timeout)
#define sctp_hb_interval (sctp_globals.hb_interval)
#define sctp_max_instreams (sctp_globals.max_instreams)
#define sctp_max_outstreams (sctp_globals.max_outstreams)

13
net/sctp/endpointola.c
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@ -102,9 +102,9 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
/* Set up the base timeout information. */
ep->timeouts[SCTP_EVENT_TIMEOUT_NONE] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
SCTP_DEFAULT_TIMEOUT_T1_COOKIE;
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
SCTP_DEFAULT_TIMEOUT_T1_INIT;
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] =
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T3_RTX] = 0;
@ -117,12 +117,9 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
ep->timeouts[SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD]
= 5 * msecs_to_jiffies(sp->rtoinfo.srto_max);
ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] =
SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
ep->timeouts[SCTP_EVENT_TIMEOUT_SACK] =
SCTP_DEFAULT_TIMEOUT_SACK;
ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] =
sp->autoclose * HZ;
ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_SACK] = sctp_sack_timeout;
ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = sp->autoclose * HZ;
/* Use SCTP specific send buffer space queues. */
ep->sndbuf_policy = sctp_sndbuf_policy;

5
net/sctp/protocol.c
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@ -1050,7 +1050,10 @@ SCTP_STATIC __init int sctp_init(void)
sctp_sndbuf_policy = 0;
/* HB.interval - 30 seconds */
sctp_hb_interval = 30 * HZ;
sctp_hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
/* delayed SACK timeout */
sctp_sack_timeout = SCTP_DEFAULT_TIMEOUT_SACK;
/* Implementation specific variables. */

13
net/sctp/sysctl.c
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@ -47,6 +47,8 @@
static ctl_handler sctp_sysctl_jiffies_ms;
static long rto_timer_min = 1;
static long rto_timer_max = 86400000; /* One day */
static long sack_timer_min = 1;
static long sack_timer_max = 500;
static ctl_table sctp_table[] = {
{
@ -187,6 +189,17 @@ static ctl_table sctp_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_SCTP_SACK_TIMEOUT,
.procname = "sack_timeout",
.data = &sctp_sack_timeout,
.maxlen = sizeof(long),
.mode = 0644,
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
.strategy = &sctp_sysctl_jiffies_ms,
.extra1 = &sack_timer_min,
.extra2 = &sack_timer_max,
},
{ .ctl_name = 0 }
};

1
net/sctp/transport.c
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@ -103,7 +103,6 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
/* Set up the heartbeat timer. */
init_timer(&peer->hb_timer);
peer->hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
peer->hb_timer.function = sctp_generate_heartbeat_event;
peer->hb_timer.data = (unsigned long)peer;